System for monitoring weld parameters
US4973813A · kind A · utility
19Cited by
4References
15Claims
0Family size
Inventor
Key dates
| Filing date | Sep 25, 1989 |
| Grant date | Nov 27, 1990 |
| Priority date | — |
| Expiry date | Sep 25, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K11/25
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An indicating system has a current pick-up inductively coupled to one of the cables of a welding system. A predetermined fraction of the voltage from the pick-up is applied to a programmed circuit arrangement which includes a timer and which controls a warning device to indicate when the predetermined fraction of the pick-up voltage has been less than a predetermined value for a predetermined time after current has begun to flow in the cable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.